651343201 has 4 divisors (see below), whose sum is σ = 672354304. Its totient is φ = 630332100.

The previous prime is 651343183. The next prime is 651343213. The reversal of 651343201 is 102343156.

651343201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 651343201 - 2⁵ = 651343169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (651343241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10505505 + ... + 10505566.

It is an arithmetic number, because the mean of its divisors is an integer number (168088576).

Almost surely, 2^651343201 is an apocalyptic number.

It is an amenable number.

651343201 is a deficient number, since it is larger than the sum of its proper divisors (21011103).

651343201 is a wasteful number, since it uses less digits than its factorization.

651343201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21011102.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 651343201 is about 25521.4263120226. The cubic root of 651343201 is about 866.8353785128.

Adding to 651343201 its reverse (102343156), we get a palindrome (753686357).

The spelling of 651343201 in words is "six hundred fifty-one million, three hundred forty-three thousand, two hundred one".